Besides the Yangtze River and the Qingjiang River, another 99 middle and small rivers run across Yichang. The potential 30 million kWh of hydropower capacity accounts for 8% of the state total, 15% of the Yangtze River, and 99% of Hubei province. The Three Gorges Hydropower Station, the world biggest one, generate over 100 billion kWh of electricity annually by its 32 generators with capacity of 22.4 million kW. The first hydropower station in Yangtze River, Gezhouba station generates 15.7 billion kWh of electricity annually by its 21 generators with capacity of 2.715 million kW. The provincial biggest hydropower station, first on the Qingjiang River, produces 3.4 billion kWh of electricity ever year by 4 generators with capacity of 1.2 million kw. Another station on the Qingjiang River, Gaobazhou Hydro station produces 0.898 billion kWh of electricity each year by 3 generators with capacity of 252 thousand kW. Together with another 300 medium and small hydropower stations, a total amount of electricity capacity of 30 million kW is produced in Yichang. It\'s pretty rare in the world for such rich hydropower resources and developed exploration system centered in less than 100 kilometers distance. Yichang, obviously, lives up to the title “the world city of hydropower”.